package com.ruoyi.project.common;

import javax.crypto.Cipher;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.xml.transform.sax.SAXSource;

import cn.hutool.http.HttpUtil;
import cn.hutool.json.JSONUtil;
import com.alibaba.druid.sql.repository.SchemaObjectType;
import com.alibaba.fastjson2.JSON;
import com.alibaba.fastjson2.JSONObject;
import com.ruoyi.common.exception.ServiceException;
import com.ruoyi.common.utils.VideoCoverUtil;
import com.ruoyi.common.utils.WxMiniProgramUtils;
import com.ruoyi.common.utils.file.FileUploadUtils;
import com.ruoyi.common.utils.file.MimeTypeUtils;
import com.ruoyi.framework.aspectj.lang.annotation.Anonymous;
import com.ruoyi.framework.config.ServerConfig;
import com.ruoyi.project.system.domain.SysStorage;
import com.ruoyi.project.system.service.ISysStorageService;
import org.apache.commons.io.IOUtils;
import org.bouncycastle.jce.provider.BouncyCastleProvider;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.http.MediaType;
import org.springframework.mock.web.MockMultipartFile;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;
import com.ruoyi.common.constant.Constants;
import com.ruoyi.common.utils.StringUtils;
import com.ruoyi.common.utils.file.FileUtils;
import com.ruoyi.framework.config.RuoYiConfig;
import com.ruoyi.framework.web.domain.AjaxResult;
import org.springframework.web.multipart.commons.CommonsMultipartFile;

import java.io.*;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.security.AlgorithmParameters;
import java.security.Security;
import java.util.*;

/**
 * 通用请求处理
 *
 * @author ruoyi
 */
@RestController
@RequestMapping("/common")
public class CommonController {
    private static final Logger log = LoggerFactory.getLogger(CommonController.class);

    @Autowired
    private ServerConfig serverConfig;



    /**
     * 通用下载请求
     *
     * @param fileName 文件名称
     * @param delete   是否删除
     */
    @GetMapping("/download")
    public void fileDownload(String fileName, Boolean delete, HttpServletResponse response, HttpServletRequest request) {
        try {
            if (!FileUtils.checkAllowDownload(fileName)) {
                throw new Exception(StringUtils.format("文件名称({})非法，不允许下载。 ", fileName));
            }
            String realFileName = System.currentTimeMillis() + fileName.substring(fileName.indexOf("_") + 1);
            String filePath = RuoYiConfig.getDownloadPath() + fileName;
            response.setContentType(MediaType.APPLICATION_OCTET_STREAM_VALUE);
            FileUtils.setAttachmentResponseHeader(response, realFileName);
            FileUtils.writeBytes(filePath, response.getOutputStream());
            if (delete) {
                FileUtils.deleteFile(filePath);
            }
        } catch (Exception e) {
            log.error("下载文件失败", e);
        }
    }

    @Autowired
    private ISysStorageService storageService;

    /**
     * 通用上传请求（单个）
     */
    @PostMapping("/upload")
    @Anonymous
    public AjaxResult uploadFile(MultipartFile file) {
        try {
            // 上传文件路径
            String filePath = RuoYiConfig.getUploadPath();
            // 上传并返回新文件名称
            String fileName = FileUploadUtils.upload(filePath, file);
            String url = serverConfig.getUrl() + fileName;
            String localPath = fileName.replace(Constants.RESOURCE_PREFIX, RuoYiConfig.getProfile());
            AjaxResult ajax = AjaxResult.success();
            ajax.put("url", url);
            ajax.put("fileLocalPath", localPath);
            ajax.put("fileName", file.getOriginalFilename());

            String extension = FileUploadUtils.getExtension(file);
            if (Arrays.asList(MimeTypeUtils.VIDEO_EXTENSION).contains(extension)) {
                Map<String, Object> map = VideoCoverUtil.getVedioImg(ajax.get("fileLocalPath").toString(), 1);
                String imgPath = map.get("imgPath").toString();
                File imgFile = new File(imgPath);
                MultipartFile cMultiFile = new MockMultipartFile("file", imgFile.getName(), null, new FileInputStream(imgFile));
                String cover = serverConfig.getUrl() + FileUploadUtils.upload(filePath, cMultiFile);
                ajax.put("width", map.get("videoWide").toString());
                ajax.put("cover", cover);
                ajax.put("height", map.get("videoHigh").toString());
            }
            SysStorage sysStorage = new SysStorage();
            sysStorage.setFileName(file.getOriginalFilename());
            sysStorage.setFileSize(String.valueOf(file.getSize()));
            sysStorage.setUploadTime(new Date());
            sysStorage.setMimeType(file.getContentType());
            sysStorage.setFileSuffix(extension);
            sysStorage.setFileUrl(url);
            sysStorage.setLocalPath(localPath);
            storageService.insertSysStorage(sysStorage);
            return ajax;
        } catch (Exception e) {
            return AjaxResult.error(e.getMessage());
        }
    }


    /**
     * 本地资源通用下载
     */
    @GetMapping("/download/resource")
    public void resourceDownload(String resource, HttpServletRequest request, HttpServletResponse response)
            throws Exception {
        try {
            if (!FileUtils.checkAllowDownload(resource)) {
                throw new Exception(StringUtils.format("资源文件({})非法，不允许下载。 ", resource));
            }
            // 本地资源路径
            String localPath = RuoYiConfig.getProfile();
            // 数据库资源地址
            String downloadPath = localPath + StringUtils.substringAfter(resource, Constants.RESOURCE_PREFIX);
            // 下载名称
            String downloadName = StringUtils.substringAfterLast(downloadPath, "/");
            response.setContentType(MediaType.APPLICATION_OCTET_STREAM_VALUE);
            FileUtils.setAttachmentResponseHeader(response, downloadName);
            FileUtils.writeBytes(downloadPath, response.getOutputStream());
        } catch (Exception e) {
            log.error("下载文件失败", e);
        }
    }

}
